Matrix pulse signal generation circuit and generation method

Abstract

The invention discloses a matrix pulse signal generation circuit. The matrix pulse signal generation circuit comprises a frequency-adjustable annular oscillator and a pulse generation circuit, wherein the input end of the frequency-adjustable annular oscillator is connected to an enable signal and is connected to frequency adjusting signals c1-cj respectively while the output end outputs a periodic output frequency signal and is connected to an input end of the pulse generation circuit; the input end of the pulse generation circuit is also connected with a pulse generation control signal while the output end outputs a matrix pulse signal. A matrix pulse signal generation method comprises the following steps: A, setting the frequency adjusting signals c1-cj and outputting the frequency adjusting signals to the input end of the frequency-adjustable annular oscillator; B, setting the pulse generation control signal to carry out setting and resetting operations for the pulse generation circuit, and setting the pulse generation control signal at a high electric level after the setting and resetting operations are finished; C, setting an allowable enable signal for the frequency-adjustable annular oscillator to enable the frequency-adjustable annular oscillator to oscillate so as to generate and output a frequency signal, outputting the frequency signal to the pulse generation circuit, and then generating the rectangular pulse signal.

Description

technical field [0001] The invention relates to the field of semiconductor integrated circuits, in particular to a matrix pulse signal generating circuit and a generating method. Background technique [0002] A pulse signal refers to a voltage or current signal with a short duration and a specific change in width and amplitude. Common pulse signals include rectangles, zigzags, bells, and digital code sequences. The pulse signal generation circuit is widely used in switch control, digital circuit dynamic characteristic test and other fields. [0003] There are many types of pulse signal generators with different performances, but most pulse signal generators are designed with analog circuits or built with existing circuit components. This kind of pulse signal generation circuit structure cannot be compared with the current mainstream digital CMOS The integrated circuit manufacturing process is compatible, that is, it cannot be integrated into the digital integrated circuit d...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a matrix pulse signal generation circuit and generation method to solve the problem that the existing generation circuit cannot be compatible with the digital CMOS process, the pulse width adjustment range is small, it is difficult to realize the nanosecond pulse width, and an external frequency input is required.

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